I don’t use any fluids on films.
but what I do that helps a lot is after a second use I use 90% alcohol on a sponge swab to clean the film. it makes a difference. it unloads the build up.
BUT – keep it on the film, don’t soak it.problem is it looks like it melts the plastic paddle. it got shiny.
the first time I was “generous” with the 90%. now I only wet the swab, keeping it off the plastic and on the film only.
I think the only thing that “may” have happened is ungluing the glass.
I’ve considered a lube on stones but don’t want them coming off the paddle so I haven’t yet.